address beans? i'm assuming you mean any food or liquid in all cans? >> yes, it's all of them and i didn't mean to just address beans, that's why the recommendation is frozen or fresh vegetables, for instance, frozen and fresh fruits, we did a bunch of product testing and looked at also past product testing to see where are the highest levels of bpa in canned foods and it looks like they end up the most in kind of very complex foods like soup or, you know, the pasta dishes that i grew up in that came out of cans, those kinds of things that are salty and maybe also acidic and maybe also really fatty seemed to like suck the stuff up, so the highest levels were in those followed by i

believe vegetables, my memory's a little rusty, especially if you're trying to pour your whole meal out of a can, that may be especially problem mat -- problematic, getting your things out of the soy boxes, or, you know, making a whole bunch of soup out of some fresh ingredients, freezing it in little glass containers, it's almost as easy as pulling a can out of the cupboard, do a big batch and you're going to know exactly what's in it, what was organic and what wasn't and you know it's not going to have bpa, but you're right, it's all canned food. >> and then my second question, i just wanted to clarify something or bring it to your attention, a lot of us here today work for the administration in this building which is actually is a pump station still in use that uses

diesel pumps to pump the water from the ocean so it's not just a fire house, it's also us being exposed to diesel exhaust, and so with you mentioned this gal, rachel, is she the person who's not here today, or when you were talking about the air quality, having your air quality tested, and the odd thing is now a different agency runs and maintains these pumps that are right beneath us now so it gets kind of complicated, but i think i've been exposed, i worked at the airport for 11 years and then worked here, i have this exposure to diesel smell that you don't notice it here, i do notice it frequently, and so when you mention this gal rachel. >> so, just before this, we had a meeting because we're working on hopefully building a study

to look at exposures among women in the fire course to understand what they're exposed to, this raises a really interesting kind of unique sub population within that, she is an environmental health scientist and has done a lot of work on measuring levels of chemicals in people and environments, so one study she did was with also in richmond california to looking at the different levels of chemicals, diesel exhaust in richmond which you would expect to be very different, and she's going to help us see if we can build a study, so this was a great thing that you brought to our attention. >> i start to think about it over the years but especially working in an airport and now

in an actively working diesel pump station. >> and it's not something you have any control over, and that's the same kind of fragmentation we're seeing at all levels, it's hard to make changes when jurisdictions move. >> but if i could get her contact information or something after the presentation, that would be great. >> okay, cool. >> i had two questions, one is you were just saying to use glass when you're cooking or microwave, what about -- i was told before that you could use plastic for the refrigerator or storage, are you saying avoid plastics all together for food storage, and then the second question is water bottles, say for instance i have a case of like costco water in my trunk that i just keep, is it the

heat that's leeching stuff into the water or is the sun breaking down the plastic, what is getting leaked into the water, is it the bpa or other toxins? >> these are great questions and they're kind of the same answer in a way. heat and light can both make plastic break down, either alone or in connection, i lived for a long time in arizona that if you leave your water in the car, it's cooking and getting exposed to light, but either one of those can lead chemicals to leak into the plastic, with bpa, we know, for instance, that it's hundreds of times more is leaked in with high heat than with low heat, it's just the nature of plastics.

but the chemicals in most food contacts like that and your water bottles are usually a number 1, the main chemical in most of those is usually relatively safe in the scheme of things, but then different companies will put different additives to give that plastic the property they want and so a study that came out in 2010 found that some of those additives can act like estrogen, so with the heat or with the uv light in particular, but even at room temperature, some of those additives that are estrogenic can get into the water and cause for instance cells that are sensitive to estrogen to grow more quickly which many breast cancers are, so limiting use like in your car, get some stainless steel or aluminum water bottles, fill those with

the water and you can leaf -- leave those in the car, you can have three or four so they're go and grab ready, plastics in the refrigerator, it's a personal decision, but sometimes i'll store stuff in plastic myself, but i kind of switched over to almost only glass just because it's easier to have one set of stuff ultimately. >> [inaudible]. >> obviously i'm not leaving it in there for months but i might leave a case in there, i might have that for a couple of weeks. >> studies they've done have usually been 72 to 108 hours, so relatively short-term, but also somewhat higher heat exposure than what we probably get most of the time in san francisco, so conditions are really variable and then it's usually controlled rather than kind of normal. yeah?

>> so, in general where possible, staying away from plastic water bottles is not only making your life a little bit healthier, it's decreasing our dependence on plastic which is more important as a broader environmental issue, but even water bottles, even if you leave them in a cold environment, you don't know where they've come from or they've been in ship holds which is really hot, just as a number one rule, if you smell something plastic don't drink out of it. >> that's good advice. >> i have two questions, they're a little bit unrelated but the first one goes on the scheme of plastic, so plastic wrap, plastic bags, you know, it's great to say we should all use glass but we know what's used out there is plastic, and it's reusable, you can come up with all these ways to avoid it

but there's plastic everywhere and it's accessible and cheap, so plastic wrap gets used a lot, there aren't that many alternatives that can do what plastic wrap does, i don't use a lot of it and it's harder to store things long-term and same question applies for the freezer, it's easier to put things in a freezer bag. >> so, a little tip for that is i do admit to using plastic bags, i reuse them and if something is not -- i don't use them for liquids and if something isn't somehow already kind of like a solid or whatever, parchment paper around that and then use the plastic just as the thing that keeps it from leak-proof or if i'm taking soup to work, i have my soup in a glass jar but i will throw it in plastic

because i don't want it all over my backpack and there's also more stainless steel options which are a little more expensive but that's a one-time investment, just don't lose it, so a box of plastic bags, it lasts me like three year, parchment paper, it's the layer that touches your food and then aluminum foil isn't really bad, but parchment paper is a good thing. >> plastics in kids toys and kids products, they're not really labeled, i don't find the same symbol on them and i do a lot of the reuse and recycle, but mostly reusing things so we have hand-me-downs and all kinds of toys that have been through many generations and i sometimes think about it, i can only worry so much about

what my son puts in his mouth, but when you talk about chemicals, where do you start, besides i know wooden toys are best and that was the plan originally, only wood in our house and glass and ceramics, that's all lovely in theory, it's not what happens unless you're a waldorf parent and you're strict and it's really your principle, so good will has a lot of plastic, so you know, anymore words on that, i realize it's a matter of what you can do, but -- >> i have not encountered some of those challenges because i'm not a parent but i have been around a lot of kids, important note is that in 2008, a law was passed that mra*s sites could not longer be used in kids toys

, for right now, if you're buying new toys off the shelf, they're not going to have that particular compound, plus skish shi ones, they're not going to have that, i know you have a small child, is when they're at that mouthing stage of putting everything in their mouth, that maybe be the time to be most concerned about the specifics when they get to the older stage where, you know, there's some pretty nifty plastic toys out there, let's get real, and i like that i had legos as a kid and those were plastic, you know, maybe that's when you loosen it up a little bit and make, you know, judicious decisions, but when they're putting everything in their mouths, you want to be the most careful about what that is, parents may have other added

tips. >> [inaudible] because most of the toys for kids, we don't really check sometimes where they're made. >> it's for toys sold in the united states, so regardless of where the manufacturer is, if they're sold in the u.s., they have to comply with those standards, other countries could well have different laws on their shelves and my guess would be vary from laws that would be more health protective to less >> good morning everybody. all right. welcome to the city and county of san francisco the innovation capital of the world and of course for those of you that come from beyond welcome to the world series champion city and county of san francisco. [applause] thank you for coming to our

moscone center, our convention center and lead gold certified building and i can't think of a more appropriate place to host the 2012 green build and expo and conference here in san francisco with a city with more than 48 million square feet of green certified real estate. [applause] . absolutely. our innovative green building policies ensure while the city's population and economy continue to grow we are decreasing our carbon emissions and achieve a sustainable environment. for instance this requires all new buildings designed to meet the gas reduction goals. that means more than 6 million square feet of commercial space and 11,000

housing units all in the development pipeline have been designed using these principles. [applause] in fact san francisco was recently recognized by the world green building council as having the greenest building policy by any local level in the year 2011 and we just began implementing our existing commercial energy performance ordinance which helps private property owners lower energy use. through san francisco's program green sf we are making it easier for property owners to secure financing for green building upgrades and as can you see green buildings has become the standard rather than the exception. for our public

libraries to affordable housing units, even to the home of our world series giants and their structure our buildings are achieving lead certification at a rapid pace and our san francisco public utilities commission has won smartest building in the world and we have honors such as the greenest city in north america, the walkable city, and the best green policies, the green tech of north america and forbes recognized that san francisco has the most green jobs in the united states. that's jobs. that's one of the most important things we are doing for the whole country. [applause] and we are creating and

sustaining jobs as well as supporting new industries in our city. our energy watch program creates or sustains 180 jobs a year. san francisco has now achieved 80% landfill diversion rate setting the national recycling and compost records as the high of any city in north america. [applause] and by the way as a former public works director you ought ton how proud i am. we have the best compost in the united states and in fact it's sold to all of the wineries in napa that make and produce the best wines in the world. our partners employs over a thousand green collar employees and solar sf

resulted in hiring from employees from disadvantaged communities in the work force program. i want to acknowledge and thank green build towards considering toward the success and the projects and the living wall in the tenderloin community garden and the potrero hill street farm and let me thank someone that has been invaluable to me and my career and my work and my efforts to make this city successful. i want to acknowledge a pioneer in the sustainable practices our former mayor and now lieutenant governor gavin newsom. [applause] >> a couple years ago then mayor newsom forged a partner with san francisco and president clinton and the clinton global initiative to transform the civic city into the first of

its kind sustainable resource district. since then we have built 525 golden gate, our puc building, one of the greenest in north america and on track to receive lead platinum certification. yes. we have installed electric charging stations here at civic center. we have free wi-fi. we have installations at the urban gardens and led lights in the plaza and we continue to do even more. i am proud to announce here that we have applied for lead certification of eight of the existing buildings in the san francisco historic civic center district. [applause] that will represent more than 2.2 million square feet of

civic real estate, including buildings such as city hall, the symphony, the library, the art museum and more. it's challenging to retrofit some of the buildings for energy efficiency and water conservation but we have done it. once lead certified the civic center retrofit strategies and technology can serve as a model to other cities and i would like to take this opportunity to recognize leaders from all the country and our world that have made great strides in environmental stewardships themselves and have joined in this conference including mayor fong from oakland, mayor kevin johnson from sacramento, mayor cory booker from new ark and hif a

applause and support his city with. [applause] i would also like to welcome former governor from new york patacky and thank you for your leadership. over the next days you will learn about sustainable practices. you will network with the greatest minds in the industry and enjoy your time here. be thoughtful. be creative and go out and lead the befl energy and green policies for the rest of the country. congratulations and thanks for being here in san francisco. [applause] >> my name is byron webb. i'm

a development director with the port and i want to welcome to heron park. it was built in the wetlands in the bay view community adjacent to the indian basin. it is approximately 22-acres and we are here to celebrate the expansion of the wetlands and also the creation of the first bidirectional bike way in the city and in this neighborhood. with that brief introduction -- the reason that we're here i wanted to introduce the mayor and have him speak to these two important projects for this bay view community. [applause] >> thank you brian. i know

when you worked on redevelopment you have seen things and especially in the southeast sector and this is a great meet up with you and thank you very much. good morning everybody. so it's still team work. yes. and i'm still kind of dazed from all of the celebrations from yesterday, but i am still willing to go ahead and say go giants yet again, but i have to tell you with a story of how even the players i think with all the news broadcasts i think they were genuinely happy, and especially when i saw angel pag an and after tony bennett sang and i need a picture. this is the most important picture in my life with tony bennett. he didn't want the picture with the world series trophy but with his family and tony ben etd. he

was having fun. i think that was the level of fun the players were having with the event yesterday and i want to thank the rest of the city and everybody gets to enjoy these moments when they're unique, but we're going to carry that on. today there is work to be done and announcements to be made and the southeast sector of our city is something i always registered to the city as your mayor we would never abandon and in fact we're making more investments in this neighborhood and heron's head park is the latest investment. it comes out of a two and a half million dollar investment out of a safety bond that we passed years ago and rec and park are almost there with 90% of the expenditures. all of the projects are accounted for and 2.5 million dollars of investment here and corrects access and updates landscaping and opens this place up even

for more use and perhaps unlike many of our urban settings i think heron's head park offers probably a unique experience in that apart from many of the trucks that are next door it is relatively a pretty quiet place. you're going to be able to have not only hiking and walking and familyand we have the quarter mile extension of a gap that was not filled in for bicycle use. that will bring yet additional numbers of people here in a

great way and then it sits next door to something that i worked with on for a number of years and that is of course the literacy for environmental justice center, the ego center that we have here that brings a lot of youth into training and education about our waterfront, about the environment, about the balance of nature, and in the urban setting and of course it not have happened on the theme i will talk about the rest of my administration which is the team work that has to happen. we have rec and part that administers the bond. we have the port with its staff and byron and susan reynolds and working with public works to open up this area with the private sector whether it's ledge or the park advocates or the green space or the blue

green advocates and this is all connected when i was taught during my dpb days and we had people walk along the water way and experience the wonderful, wonderful initial resources that we had, so all of these investments. >> >> will bring a lot of great use of open space to this area and not to forget we have a little off lease dog run that is also added in here for our dog lovers which there are countless many in the city and having an area where the dogs can play with their guardians and having a natural place for this to happen. you see all of the elements happening here and i want to thank the team and the agencies working together and with community and ledge and the department of the environment is

here as well (railroad noise). >> yes and all positive activities. the railway station is historic and it will remain that way, so again welcome to heron's head park. by the way for those of you who don't know why it's named this way is because if you ever have a chance to get above this area and see it literally is shaped like a heron's head and this is part of the honoring of our waterfront area. it's a great investment and of course it will lead me to say with the responsible, and this year is our proposition b which extends another great investment of $195 million to many other

areas including the south east sector of open space that we got to take care of, and modernize. this is what rec and park does very well with dpw with all of the capital leadership in the city that i got to work on with the city administrator. we need to take care of the infrastructure in many ways and we are loving our parks and why we want this great investment to continue and this is another small yet important addition. we will have $35 million more of that with the connection with the port and the next bond so it serves as a great example how we use the park bonds to of benefit of all of our users and residents and especially because we want our southeast sector to continue evolving in a positive way for everybody. it has en